Furnace.



J. W. BROWN.

FURNACE.

APPLICATION FILED mm. 1, 1911.

1,067,795. Patented July 22,1913.

2 SHEETS-SHEET 1.

I'nvenfon Mil 6344 7 YMMV J. W. BROWN.

FURNACE.

APPLICATION FILED DEO.1, 1911.

Patented July 22, 1913.

-2 SHEETSSHBET 2.

' through the walls 4;, and will be absorbed l the material Within the chamber which surrounds the central chamber. This material will, in turn, radiate a certain amount of the heat it receives. This heat being conducted through the walls 3, will be absorbed by thematerial contained in the. chamber between the walls 1 and 3. As before stated,

the rate of movement of the material in each'of the chambers may be independently governed so that the material in any given chamber can be moved at a rate such that the material may be subjected to the heat for any desired length of time. For example, the charge in the central chamber may pass through the chamber at such a rate that it will be completely converted to graphite; that is to say, being heated to something over 2000. If'the charge within the chamber surroundingthe central chamber be moved slowly, it may be possible to heat the material within the surrounding chamber from 1500 to 1800", by the means of the heat radiated from the central chamber. The material within the outermost chamber may, in turn, be moved at such a rate as to heat the same to a temperature l v i i i l l l l l l varying from 1000 to 1200", and, if desired, other concentric chambers ma y be provided, through which material may be passed so that the heat radiating from the central chamber will be practically all adsorbed by the various charges and thus be conserved. Granular carbon, such as might be heated from 1500 to 1800 in the chamber surrounding the central chamber is useful in a number of instances, and the same would be true of carbon material heated from 1000 to 1200 in the OlltOl'll'lOSt chamber. And it will be perfectly apparent that the material which had been heated in its passage through the chambers surrounding the heating chamber may be retreated,

such is desired, and, by this previous heat ing, a great saving will be effected in that as the material is hot, 1t Wlll not require so much heat to raise the material to the de sired temperature.

lhis --reheating may be accomplished by passing the material heated in any of through the central or heating chamber, or

the concentric chamberschamber nearer the. heating chamber. As Wlll be apparent, various means may be used to handle the material in this way, and y bottom of thechamber there is located a conveyer orsimilar device 23 by which thematerial may becaused to move through the chamber. Surrounding the wall 22 and spaced therefrom are walls 24 which inclose the chamber 24, and outside 'ofthe walls 24 and spaced therefrom are walls 25 providing the chamber 25. Cooperating with the walls 22 is a cover 26 which incloses the chamber 19 and forms a condensing chamber at the top of this chamber in the In this figure,

same manner as explained with relation'to Fig. 1. Through the cover there extends the hollow electrode 27 in the same manner as explained with regard to Fig; 1, which, in conjunction with the double electrode 28, forms terminals for the introduction of the electric current through the heating chamber. The heating chamber 20 is in communication with the chamber 24. The material passing through this chamber is fed through the hollow electr de 29 in the same manner as material is fed into the chamber 10 through the hollow electrode 27. An electrode 30 also extends into this chamber 20, for the purpose of introducing in conjunction with the electrode 29, the electric current, into the chamber. In the lower part of the chamber 20 there is a conveyer 31. by which the material may be removed from the lower part of the chamber, which thereby causes the movement of the mate rial being treated through the chamber 24? and the chamber -20. The conveyers 31 and 34 may operate as suggested to remove the material from the respective heating cham- Y 5 is not applied directly to the material within the chambers 20 and 21. The walls 25 support the electrode 39, as it pro] ects into the chamber 21. This electrode 32 1s hollow and communicates with the lower portion the material previously passed through the I outer chamber may he passed through flu;

of the chamber 25". There is also an ciectrodc which pro ects into the chamber 21,

emma tiivwghy 1":1 in: the ii'inwaeiiieiit of, the matm-wi lhi'uzzgh Lin i-fi'minbers :55 and 21.

H, HR: Walls 25 at. H119: pnriii'm iiiiikiif hi-m they pzirriliei with the Walls m the i-liumbui :31) 211: walls; 3 Whit are spaced from the wa'lis. &. thereby providing a vliiimiior 21 \t the upper part, these vii-iii 3 an flMNi info a. hopper shape, as in aid in (in: introdiictimi iii Ii)fli"iiii in iw law-1w? fw'uu'uunding the lmvei iui'ti n ni' i'hv \a'niis and spaced ihurii'i'inn an, walk i? which. provide the (ilililiifil Tin! \\;liib ii an) flared at tiivii HPDH 1H1? iiiu a hopper shame, as in- Ui -zii'iwi :si 23%, in aid in tin? intvminflion (if nmlmizf in iw ii lhi i. Cunniiunivatiiig with i- =1 viwii ww 1 F) and 37" iii i110 lower i :1 mun-51 i- 39 whereby mi in: iililWli from the imver z g; viii 1 vnwiuy from the maiel'izii \rr 'i and 31 411 :i IHLUZHQY siinii-ii' iiaslhei'vhifme imvn riw-miiii-iiv wiii he SPWPPHL a fin-mum Hf {he ivgie descrilwd, may tin mlwtllflfflfll with any iii:- irwi muniwr of heating ('ilillniim'br he smik'rial being iiiirodm'vd into iHfSi? i *ywrtivc heating 'iizmib r1-1 in the manna? enai cziic l fifid dewrihed.

Having thus what I claim i iii! (in:

n iiiilL \Yiihii iei-irii iinii 11mm: fur herding Um; ifidi'ii'lili,

movement of the material through Fflltl ehamhers may he intlepentlentl-y manipulateil, mean for heating the material in the innermost ehainher, the heat from Ftlltl ma terial radiating ;-u ce:----i\el v through the uni terial within the filtl'l itliHllllg"tlltlllllitjlw.

T. A turnaethaving {I 'iltfralit-v ot' eoncentritrall i' :n'rangetlehznnher eaeh adapted to receive a separate charge of material, N16313:, {tf+' )t"ltlittl, with eu lt rhamlier f r moving the malt-rial therein through the rhanilier, wherein; the rate; of movement of 1 material through the ('littltlllOl'F may he \:ll'lOtl aiul eontrolletl, and means for h ating i the material within the central tsl'iainher, the 5 heat from aitl nntterial radiating Silt t'i :i\'ely through the material in the urrountlinef ehziniliei's.

bl turnare having a plurality of onl rentrieally arrangetl rhamhrrs. means i'or moving: the material within the ehauihers and pant the heating; zone of the heating ehainher through tilt aitl chamheis, meat l't i' heating the material in the inneriumt tlian'iher, th heat from saitl material rzuliat in; MM PSS IVQl) through the material trithin the e'itl'lt'llliltilltg ehamher. and mean l'or ('f)(llti 1 the nniterial in the ('l'lfilllbelr-l heiore the tame is removed therefrom.

i X furnace ha ving a plurality of coin c ntrieally arranged chai'nhers, saitl chain 5 here lieingz adapted to contain material to be heated, a eonveyer assoeiatetl \vith earh rhainher below the heating zone ther' in whet-eh material caused to move through tl-z hainhers. mean for hating the material in the innermost chamber. the heat from v aitl material l'tt llilt li'ig euti-ceasirely through the mat rial within the surrounding chatnhers.

I turiia e having an outer wa l antl a l Cltiltftl with phi 'ality of concentrically arranged Walls within the outer Wall, thereby forming independent concentric chambers, means asao- *aeh chamber for moving meteriz l eontainetl therein through the chamber, and means for heating the material Within the innermost chamber.

It. A. furnace inning a chainher atlai it'eti to eom'ain material to he heated means for heating material within said chamber,mean? for phasing a moving envelop of material to he heated upon the outside of the said chamher, a eoontl heating ehziniber to which the material in the moving envelop is con tlucteil. anil IHZUJR for heating: the material riithin the laat mentioned chamber.

1;. A furnace having a central chamber antl a SGtUlltl chai'nher surrounding the central trhninher, means for heating the. mate rial within the central trl'nnnher, means for moving the material through the SECOI'ttl mentionetl rhamher, a tliirtl ehaznher \vlzieh conneetswith and revel mat rial the Httt'lttl txln'nulier uwntioneii, anti for heating the material within the ehamher.

123. A tut-nae;- having a iliniii'ity of he ing ehamher ne aho i the other, I'Qie trit: chambem oltlltflliltlllif the ngipernios sttitl chambers, eueh oi' aitl eoneentrie eh i hers heing eonneetetl with a se iiarate heat ing chamber, mean; for moving the mat rial within the Clltlllllk'tlfi through the sen: i i lllttlli for heating the material within the heating: chambers.

in testin'iony i' :reot' l hereunto atlix my signature in the pmsenee of two witne es.

JOHN C BROWN.

from

itneases:

l. l). lint/mixes, Ricu iim lit lTlfiAYSFY, 

